NFSv4.1: Fix a request leak on the back channel
[linux/fpc-iii.git] / net / rds / iw_sysctl.c
blobe2e47176e729f5a8c24cb1359335a7412d5e7ea8
1 /*
2 * Copyright (c) 2006 Oracle. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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30 * SOFTWARE.
33 #include <linux/kernel.h>
34 #include <linux/sysctl.h>
35 #include <linux/proc_fs.h>
37 #include "iw.h"
39 static struct ctl_table_header *rds_iw_sysctl_hdr;
41 unsigned long rds_iw_sysctl_max_send_wr = RDS_IW_DEFAULT_SEND_WR;
42 unsigned long rds_iw_sysctl_max_recv_wr = RDS_IW_DEFAULT_RECV_WR;
43 unsigned long rds_iw_sysctl_max_recv_allocation = (128 * 1024 * 1024) / RDS_FRAG_SIZE;
44 static unsigned long rds_iw_sysctl_max_wr_min = 1;
45 /* hardware will fail CQ creation long before this */
46 static unsigned long rds_iw_sysctl_max_wr_max = (u32)~0;
48 unsigned long rds_iw_sysctl_max_unsig_wrs = 16;
49 static unsigned long rds_iw_sysctl_max_unsig_wr_min = 1;
50 static unsigned long rds_iw_sysctl_max_unsig_wr_max = 64;
52 unsigned long rds_iw_sysctl_max_unsig_bytes = (16 << 20);
53 static unsigned long rds_iw_sysctl_max_unsig_bytes_min = 1;
54 static unsigned long rds_iw_sysctl_max_unsig_bytes_max = ~0UL;
56 unsigned int rds_iw_sysctl_flow_control = 1;
58 static ctl_table rds_iw_sysctl_table[] = {
60 .procname = "max_send_wr",
61 .data = &rds_iw_sysctl_max_send_wr,
62 .maxlen = sizeof(unsigned long),
63 .mode = 0644,
64 .proc_handler = proc_doulongvec_minmax,
65 .extra1 = &rds_iw_sysctl_max_wr_min,
66 .extra2 = &rds_iw_sysctl_max_wr_max,
69 .procname = "max_recv_wr",
70 .data = &rds_iw_sysctl_max_recv_wr,
71 .maxlen = sizeof(unsigned long),
72 .mode = 0644,
73 .proc_handler = proc_doulongvec_minmax,
74 .extra1 = &rds_iw_sysctl_max_wr_min,
75 .extra2 = &rds_iw_sysctl_max_wr_max,
78 .procname = "max_unsignaled_wr",
79 .data = &rds_iw_sysctl_max_unsig_wrs,
80 .maxlen = sizeof(unsigned long),
81 .mode = 0644,
82 .proc_handler = proc_doulongvec_minmax,
83 .extra1 = &rds_iw_sysctl_max_unsig_wr_min,
84 .extra2 = &rds_iw_sysctl_max_unsig_wr_max,
87 .procname = "max_unsignaled_bytes",
88 .data = &rds_iw_sysctl_max_unsig_bytes,
89 .maxlen = sizeof(unsigned long),
90 .mode = 0644,
91 .proc_handler = proc_doulongvec_minmax,
92 .extra1 = &rds_iw_sysctl_max_unsig_bytes_min,
93 .extra2 = &rds_iw_sysctl_max_unsig_bytes_max,
96 .procname = "max_recv_allocation",
97 .data = &rds_iw_sysctl_max_recv_allocation,
98 .maxlen = sizeof(unsigned long),
99 .mode = 0644,
100 .proc_handler = proc_doulongvec_minmax,
103 .procname = "flow_control",
104 .data = &rds_iw_sysctl_flow_control,
105 .maxlen = sizeof(rds_iw_sysctl_flow_control),
106 .mode = 0644,
107 .proc_handler = proc_dointvec,
112 static struct ctl_path rds_iw_sysctl_path[] = {
113 { .procname = "net", },
114 { .procname = "rds", },
115 { .procname = "iw", },
119 void rds_iw_sysctl_exit(void)
121 if (rds_iw_sysctl_hdr)
122 unregister_sysctl_table(rds_iw_sysctl_hdr);
125 int rds_iw_sysctl_init(void)
127 rds_iw_sysctl_hdr = register_sysctl_paths(rds_iw_sysctl_path, rds_iw_sysctl_table);
128 if (!rds_iw_sysctl_hdr)
129 return -ENOMEM;
130 return 0;